10 Commits

Author SHA1 Message Date
Frank Denis
e45bdc6bd6
std.crypto.pcurves.*: simpler, smaller, faster u64 addition with carry (#19644)
signature/s:

Algorithm        Before     After
---------------+---------+-------
ecdsa-p256        3707       4396
ecdsa-p384        1067       1332
ecdsa-secp256k1   4490       5147

Add ECDSA to the benchmark by the way.
2024-04-14 01:13:22 +02:00
mlugg
f26dda2117 all: migrate code to new cast builtin syntax
Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:

* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
2023-06-24 16:56:39 -07:00
Veikka Tuominen
622311fb9a update uses of overflow arithmetic builtins 2022-12-27 15:13:14 +02:00
Andrew Kelley
68fc26cd08 std: break up some long lines
This makes packaging Zig for Debian slightly easier since it will no
longer trigger a Lintian warning for long lines.
2022-01-28 16:23:47 -07:00
Andrew Kelley
6115cf2240 migrate from std.Target.current to @import("builtin").target
closes #9388
closes #9321
2021-10-04 23:48:55 -07:00
Luuk de Gram
9e24727062
Fix compile error for p256 scalar arithmetic (#9715) 2021-09-10 15:41:15 +02:00
Veikka Tuominen
6dbdac4b60 replace usage of meta.cast with builtins
You weren't supposed to use these >:(
2021-06-14 20:13:39 +03:00
Frank Denis
7674a8b43d p256: update to the last fiat-crypto code & share PC tables
fiat-crypto now generates proper types, so take advantage of that.

Add mixed subtraction and double base multiplication.

We will eventually leverage mixed addition/subtraction for fixed
base multiplication. The reason we don't right now is that
precomputing the tables at comptime would take forever.
We don't use combs for the same reason. Stage2 + less function
calls in the fiat-crypto generated code will eventually address
that.

Also make the edwards25519 code consistent with these changes.

No functional changes.
2021-05-27 16:35:10 -04:00
Isaac Freund
5b850d5c92
Run zig fmt on src/ and lib/std/
This replaces callconv(.Inline) with the more idiomatic inline keyword.
2021-05-20 17:14:18 +02:00
Frank Denis
97779442d0
Prepare std/crypto/pcurves for ecdsa and other curves (#8670)
Functions generated by Fiat-crypto are not prefixed by their description any more. This matches an upstream change.

We can now use a single type for different curves and implementations.

The field type is now generic, so we can properly handle the base field and scalars without code duplication.
2021-05-03 09:57:45 +02:00